} catch (UnsupportedOperationException e) {
      return;
    }

    Set<Entry<K, V>> entrySet = map.entrySet();
    Entry<K, V> originalEntry = entrySet.iterator().next();
    // Copy the Entry, as discussed in testEntrySetRemoveAll.
    Set<Entry<K, V>> entriesToRetain =
        singleton(mapEntry(originalEntry.getKey(), originalEntry.getValue()));
    if (supportsRemove) {

the HTTP client and the HTTP server.
Unrecognized settings in the `GODEBUG` environment variable are ignored.
It is also possible to set the default `GODEBUG` for a given program
(discussed below).

When preparing any change that is permitted by Go 1 compatibility
but may nonetheless break some existing programs,
we first engineer the change to keep as many existing programs working as possible.

   * creating a directory that would be more accessible. (This behavior is new in Guava 32.0.0.
   * Previous versions would create a directory that is more accessible, as discussed in <a
   * href="https://github.com/google/guava/issues/4011">CVE-2020-8908</a>.)
   *
   * <p>Use this method instead of {@link File#createTempFile(String, String)} when you wish to

          }

          long deltaToFloor = x - roundFloor;
          long deltaToCeiling = roundCeiling - x;

          if (roundCeiling == Long.MAX_VALUE) {
            // correct for Long.MAX_VALUE as discussed above: roundCeilingAsDouble must be 2^63, but
            // roundCeiling is 2^63-1.
            deltaToCeiling++;
          }

          int diff = Long.compare(deltaToFloor, deltaToCeiling);

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